Hanna Instruments

Designed to provide a complete unit for teachers to introduce students to important chemical test to evaluate soil quality and fertility and relate these measurements to the principles of plant metabolism. The components are tied together by an extensive teacher?s guide that includes in-depth background information about each parameter, classroom activities designed to introduce students to each parameter, and detailed field testing procedures. Includes: agriculture combination test kit for testing nitrogen, phosphorus, potassium (NPK), and pH (enough materials are provided for 50 tests of each parameter), pHep 4 waterproof pH meter for pH measurements, DiST 5 EC/TDS/temperatur e meter for conductivity measurements, HI 145 electronic thermometer for temperature measurements,... Less

With the Hanna Instruments Hanna Instruments HI 99121K Direct Soil pH & Direct Soil Activity/Solution Conductivity Combo Kit, users can test both the pH of soil directly or after preparation of a diluted sample. + The Hanna Instruments HI 1292D features a conical, rugged tip that can be directly inserted in moist or soft soil. For harder soils, the kit includes a plastic auger to perforate the ground.

Potassium is present in tissues responsible for the growth of plants (primary and secondary meristems). It plays an important role in how much water is absorbed by the roots and in the regulation of cellular activity. In addition, potassium makes plants more resistant to diseases and yields a positive effect on the color and fragrance in flowers. Potassium deficiency is a frequent problem in calcareous soils. The Hanna test kit determines potassium in soil via a turbidimetric method. Potassium is precipitated in a basic environment with sodium tetraphenylborate . The developed turbidity is proportional to potassium concentration. Test kit comes with 25ml formaldehyde solution (4), 100ml potassium reagent A (3), 100 packets potassium reagent B, 50ml long glass test tube, 50ml calibrated... Less

Potassium as a chemical element is commonly found in nature. It is present in soil and drinking water and is also an essential element for the growth of plants and animals. + Potassium concentration is important in determining the quality of soil in many greenhouse, agriculture and horticulture applications. Potassium salts are also a common component of fertilizers. + The HI 96750 measures the potassium (K) content in water samples in the 0.0 to | 10.0 mg/L (ppm) for low range and 10 to 100 mg/L (ppm) for medium range. The | HI 96750 uses the Tetraphenylborate Method. The reaction between potassium and reagents causes turbidity in the sample. + HI 96750 uses an exclusive positive-locking system to ensure that the cuvette is in the same place every time it is placed into the measurement... Less

The Hanna Instruments HI 504 Series of pH/ORP Digital Controller is a PID, PI, proportional or on/off pH/ORP controller with one or two set points. The measurement configuration settings and control of pH and ORP are saved separately and permits users to switch between pH and ORP without losing settings. The pH channel can be calibrated in 2 calibration points. The instrument has a full auto diagnostic procedure. Sensor Check is also available for pH and ORP probes. + The temperature is continuously monitored using a temperature sensor (Pt100 or Pt1000 type) with automatic temperature compensation of pH. One or two analog controller outputs (0-20 or 4-20 mA) can be configured for pH/ORP recording or controlling (only for models with PID), and relays can be used to control the process or... Less

The Hanna Instruments HI 504 Series of pH/ORP Digital Controller is a PID, PI, proportional or on/off pH/ORP controller with one or two set points. The measurement configuration settings and control of pH and ORP are saved separately and permits users to switch between pH and ORP without losing settings. The pH channel can be calibrated in 2 calibration points. The instrument has a full auto diagnostic procedure. Sensor Check is also available for pH and ORP probes. + The temperature is continuously monitored using a temperature sensor (Pt100 or Pt1000 type) with automatic temperature compensation of pH. One or two analog controller outputs (0-20 or 4-20 mA) can be configured for pH/ORP recording or controlling (only for models with PID), and relays can be used to control the process or... Less

? Supplied with probes for liquid and direct soil measurement. ? Automatic Temperature Compensation ? BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings HI993310 is an instrument that has been designed to address the need for fast and accurate conductivity measurements in soil and liquids. It is supplied with two probes: HI 76305 with stainless steel, conical tip for direct soil measurement and HI 76304 for fertilizer enriched solutions. HI993310 measures the soil conductivity in EC (mS/cm) as well as salt activity (g/L). The different scales can be selected through two keys on the front panel and two separate LEDs indicate which parameter is being tested. In addition, HI993310 is equipped with an alarm LED that... Less

Hardness in water is mainly due to the presence of calcium and magnesium ions and each contributes to the amount of total hardness. Monitoring and controlling hardness is instrumental in order to prevent scaling and corrosion. The test kit extracts calcium and magnesium from soil in acidic medium and then determines them via a titrimetric method. The indicator chelates with the calcium and magnesium ions to form a red colored complex. As EDTA is added, calcium and magnesium complex with it, and the reaction endpoint is indicated by a change in color of the indicator from red to blue. Test kit comes with 100ml buffer solution, 10ml calmagite solution, 120ml EDTA solution, 50ml calibrated vessel, 3ml plastic pipette, 1ml plastic pipette and 1ml syringe with tip. Titration method. Range:... Less

Calcium and magnesium are often present in soil as carbonates, sulfates (in arid regions) and silicates. They are necessary nutrients for plants since they have an important role in plant metabolism and growth. They can be removed from soil by leaching (for instance in acidic soil of humid regions) or by crop production; a deficiency of calcium and magnesium in soil will manifest itself in stunted growth and in yellow and deformed leaf tips. On the other hand, soil with an excess of calcium and magnesium will lock up other necessary micronutrients, making them unavailable to plant roots (e.g. vailable phosphorus forms an insoluble salt with calcium at pH values above 7.5, thus decreasing the efficiency of applied phosphorus fertilizers). The test kit determines calcium and magnesium in... Less

The Hanna test kit for phosphorus determines the phosphorus concentration via checker disc. The reaction between phosphate and the reagent causes a blue tint in the sample and uses an adaptation of the ascorbic acid method. Test kit comes with 100 packers phosphorus reagent, checker disc, glass vials with caps (2) and 1ml syringe with tip. Checker disc method. Range: 0.0-130.0 milligram per liter. Smallest increment: 3.3 milligram per liter. Ascorbic acid chemical method. Number of tests 100. Weight: 435.5 grams.

The Hanna Instruments HI 76305 Conductivity and TDS Probe is a Stainless steel conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3) cable for direct soil measurement.

In agricultural applications, monitoring the quality of the soil is extremely important for the health and growth of crops. The pH level is an excellent guide as to which plants may thrive in a particular terrain, as well as indicating which conditioners and fertilizers to use. Hanna combination test kits allow you to test not only for pH, but for nitrogen, phosphorous and potassium which are all important for the quality of soil as well. Hanna's quick Soiltest provides growers with an economical way to quickly test pH as well as the three basic elements needed for a healthier plant: nitrogen (N), phosphorus (P) and potassium (K). Kit includes 40 powder packets (10 each for pH, N, P and K), 1mL plastic pipette, test tubes (4), color cards (4) and one graduated card. Colorimetric and... Less

Hanna sample preparation solutions are used to prep samples for testing. These include preparing soil samples, solids or semi solids for use with our testing instruments. 230mL bottle.

Test Kit is for ultra low range copper. Kit comes with HI 3856-0 reagent (100 packets) and color comparison cube. Copper is a reddish metal that occurs naturally in rock, soil, water, sediment, and air. Its unique chemical and physical properties have made it one of the most commercially important metals. Since copper is easily shaped or molded, it is commonly used to make money, electrical wiring, and water pipes. Copper compounds are also used as an agricultural pesticide and to control algae in lakes and reservoirs. Bicinchonic acid chemical method. 100 Tests. 180 grams.

No more mixing solutions, or waiting - simply dip these waterproof testers in the water Easy-to-read test results in seconds Quickly measure pH and temperature; or test conductivity, total dissolved solids, and temperature The pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto- compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. +/-0.1 accuracy. The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation... Less

Potassium in soil reagent kit for 100 tests for HI38082 potassium test kit. Range: 0-50 milligram per liter, 50-250 milligram per liter. Smallest increment: 5 milligram per liter, 25 milligram per liter. Turbidimetric chemical method. Weight: 889 grams.

No more mixing solutions, or waiting - simply dip these waterproof testers in the water Easy-to-read test results in seconds Quickly measure pH and temperature; or test conductivity, total dissolved solids, and temperature The pHep 4 measures pH and temperature. Thanks to a stability indicator and hold feature, you'll know when to take the reading and you can freeze the display for easy and accurate recording. A stainless steel temperature probe enables fast, precise temperature measurement and auto- compensation. Includes four 1.5V batteries, pH electrode, and electrode replacement tool. +/-0.1 accuracy. The DiST 5 offers a 3-in-1 solution that instantly tests conductivity, total dissolved solids (TDS), and temperature. The unit includes adjustable TDS ratio and temperature compensation... Less

Phosphorous in soil reagent kit for 100 tests for HI38073 phosphorus test kit. Range: 0.0-130.0 milligram per liter (ppm). Smallest increment: 3.3 milligram per liter. Ascorbic acid chemical method. Weight: 435.5 grams.

ORP standard solutions allow you to test the precision of ORP electrodes. For example, by immersing the electrode in HI 7020 solution, you should read within the 200 to 275 mV range (@20?C/68?F). If the reading is outside the indicated interval, clean and condition your ORP electrode in HANNA® pretreatment solution. Use HI 7092 for oxidizing or HI 7091 for reducing pretreatment.